JP2537112Y2 - Enclosure enclosure - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealing housing for sealing the inside of a housing from the outside.

[0002]

2. Description of the Related Art This type of enclosure is used for refrigerators and volumetric analyzers that need to maintain a sealed state with the outside, so that the sealed state can be maintained when the lid of the enclosure is closed. In general, a packing is provided at a contact portion between the housing main body and the lid, and the lid is fixed to the housing main body via the packing while being pressed by a lid stopper. . FIGS. 7A and 7B show a conventional example of such a lid stopper.
2 is shown in a closed state. The lid 102 has a mounting seat 125 having a hooking portion 122 at an end, and a screw 124.
The operation lever 111 is rotatably attached to the latch lever rotation center 114 with respect to the operation lever 111 rotatably attached to the operation lever rotation center 113 of the mounting seat 115 screwed to the housing body 101. The hook 112 provided on the hook portion 1
22. In this state, the latch 112 pulls the engaging portion 122 in the direction of the housing main body 101, so that the lid 102 is pressed against the housing main body 101 via the packing 103. Then, the operation lever 111
Is raised in the direction of the arrow, the latch portion rotation center 114 moves forward, and the latch 112 and the latch portion 122 are disengaged.
The lid 102 can be opened.

However, in such a configuration, if the lid is closed from the outside by the lid stopper while a person is in the housing, it is impossible to escape from the inside. Therefore, in order to solve such a problem, a configuration shown in FIG. 8 has been conventionally adopted. That is, the housing body 20
At one end, a mounting seat 225 having a hook 222 is provided, and the hook 212 is engaged with the hook 222. In this state, the lid 202 is pressed against the housing main body 201 via the packing 203 by the lid stopper, and the sealed state is maintained.
Then, when the operation lever 211 is pulled up in the direction of the arrow, the latch 212 is retracted, and the engagement between the engaging portion 222 and the latch 212 is released. A push rod 205 that penetrates to the outside is provided inside the lid 202 of the sealing housing, and the operating lever 2 is pressed by pushing the push rod 205 from inside the housing.
11, the locked lid 202 can be opened even from the inside.

[0004]

However, when the push rod 205 is provided as shown in FIG. 8, it is necessary to push up the operation lever 211 and to obtain a certain stroke. The occupied space of the push rod 205 becomes large, and the inside of the push rod 205 cannot be effectively used. In addition, since it is impossible to completely seal the penetrating portion of the cover 202 of the push rod 205, there is a problem that sufficient hermeticity cannot be maintained.

The present invention has been made to solve these problems, and has a simple structure, a lid can be opened even from the inside of a sealed housing, and a sealed structure capable of sufficiently maintaining the sealing property. It is intended to provide a housing for use.

[0006]

Means for Solving the Problems To achieve the above object, a sealing housing according to the present invention comprises a housing main body, a lid, a packing for shielding the housing main body and the lid, and a rotation fulcrum. Engaging means rotatably disposed on the engaging means; holding and releasing means configured to engage and retain the engaging means in a state where the engaging means is not tilted and to release the engaged state; and Latch means provided so as to be able to engage with the engaging means only when the means is not inclined, and to release the engagement with the engaging means by the inclination of the engaging means, and the holding means provided in the housing body. The release means is provided with a switch for electrically instructing only the release of the engagement with the engaging means.

[0007]

The operation of the enclosure according to the present invention will be described with reference to FIG. The holding means 20
Is held, and the latching means 10 is engaged with the latching means 20. Specifically, the compressed air is sent from the port 38 to the air cylinder 39, the catch lever 29 is engaged with the catch recess 31 of the catch 33, and the engaging portion 22 provided at the end of the catch lever 29 is After the latch 12 is engaged, the operating lever 11 is pushed down (the stopper 33, the receiving lever 29, and the latch 12 are in the states of A, B, and C, respectively).

When the switch 4 is pressed, the holding releasing means 30 releases the holding of the engaging means 20, and the engaging of the engaging means 20 and the latch means 10 is released. Specifically, the solenoid valve 41 is switched to the state shown in FIG. 4, the air in the air cylinder 39 is released to the atmosphere, the fitting 33 moves to the position A ′, and the engagement between the fitting 33 and the receiving lever 29 is performed. In this case, the engagement between the engagement portion 22 and the latch 12 is released, and the state becomes A ', B', and C ', respectively.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is an overall view showing an embodiment of a hermetically sealed housing according to the present invention, which is used, for example, as a housing for a volume meter by gas analysis for measuring the volume of a human body. FIG. 2,
FIG. 3 shows the main parts of the sealing housing according to the present invention, that is, the latching means 10, the latching means 20, the holding releasing means 30, and the like. FIG. 2 is a side view and FIG. The figure is shown. In the figure, reference numeral 1 denotes a casing main body, 2 denotes a lid of the casing main body 1, and 3 denotes a packing which shields the outside and the inside of the casing when the lid 2 is closed, and is attached to the casing main body 1 or the lid 2. Reference numeral 4 denotes a switch disposed in the housing. As shown in FIG. 4, when the switch 4 is released, a voltage is applied to the solenoid valve 41, and the solenoid valve 41 is turned left against the spring. The air cylinder 39 moves to the port (38).
Compressed air is supplied to the air cylinder 39 through the air source. On the other hand, when the switch 4 is pressed, the energization of the voltage to the solenoid valve 41 is cut off, and the solenoid valve 41 is pushed rightward by the spring and moves to the right (A). Released to the atmosphere through. Since the switch 4 is an electric switch, the switch 4 can be easily attached to the housing body 1 via an O-ring as shown in FIG. 5, for example, while maintaining a sealed state from the outside.

Reference numeral 10 denotes a latch means, which comprises an operation lever 11 and a latch 12. The operation lever 11 is an operation lever rotation center 13 provided at an end of a mounting seat 15 screwed to the housing body 1 with a screw 16. Is mounted so as to be rotatable in the direction of arrow DD ′. The latch 12 is attached to the latch portion rotation center 14 of the operation lever 11 so as to be rotatable in the direction of arrow CC ′.

Reference numeral 20 denotes a hooking means, which is a rotation center 2 provided at an end of a mounting seat 25 screwed to the lid 2 with a screw 24.
3 includes a receiving lever 21 rotatably provided in the direction of arrow BB 'and a hook 22 provided at an end thereof. When the receiving lever 21 is not inclined, the stopper 3
3 engages with the retaining recess 31 of
With

Numeral 30 is a holding releasing means, which is an air cylinder 39 attached to a blanket 36 screwed to the lid 2 by screws 37, and a rod 3 of the air cylinder 39.
It is constituted by the metal fittings 33 arranged in 2. The air cylinder 39 is a single-acting retractable type, and when no compressed air is supplied to the port 38, a spring disposed therein (FIG. 4)
As a result, the stopper 33 is pushed out to the position A ', and when the compressed air is supplied, the stopper 33 is pulled into the position A in the figure. The stopper 33 is rotatably attached by a bolt 35 screwed to the rod 32 of the air cylinder 39.
It has a stopper recess 31 and a notch 34. When the receiving lever 21 is engaged and held, compressed air is supplied to the air cylinder 39 to pull the stopper 33 to the position A in FIG.
As shown in FIG. 6, by rotating the stopper 33, the notch 34 is disposed so as to be directly below, and
, The stopper recess 31 is positioned directly below as shown in FIG. As a result, as shown in FIG.
1, the receiving lever 21 can be easily engaged.
By releasing the port 38 to the atmosphere and moving the stopper 33 to the position A ′, the stopper recess 31 and the receiving lever 21 are moved.
Can be released.

The operation of keeping the hermetically closed state by closing the lid 2 on the case main body 1 and the operation of releasing the hermetically closed state from inside the case will be described with respect to the hermetically sealed housing configured as described above. First, in FIG. 4, the solenoid valve 41 is switched to the position (a),
Compressed air is supplied from an air source to an air cylinder 39 via a port 38. Then, the notch 34 is positioned directly below by rotating the stopper 33 in a state where the rod 32 is retracted and the stopper 33 is positioned at A in FIG. 2, and the receiving lever 21 is positioned at B. Then, the stopper 33 is rotated again to engage the stopper recess 31 with the receiving lever 21. Next, the latch 12 is hooked on the engaging portion 22 with the operation lever 11 raised, and the operation lever 11 is pulled down in this state. At this time, the operation lever 11 rotates about the operation lever rotation center 13, and the latch 12 rotates about the latch rotation center 14 provided before the operation lever rotation center 13. As a result, the latch 12 is pulled toward the operation lever, and the lid 2 is pressed against the housing main body 1 via the packing 3, thereby maintaining a sealed state between the outside and the inside of the housing.

Next, the operation for releasing the sealed state from the inside of the housing will be described. When the switch 15 is pressed in the housing, the solenoid valve 41 switches to the position (A) as shown in FIG. 4, and the inside of the air cylinder 39 is released to the atmosphere via the port 38. At this time, the rod 32 is pushed out by the spring in the air cylinder 39, and the position of the stopper 33 shown in FIG. 2 moves from A to A '. At this time, the receiving lever 21 moves from the non-inclined state B to the inclined state B ′ since the latch 12 is pulled by the operation lever 11. And receiving lever 2
Due to the difference in the curvature of rotation between the latch 1 and the latch 12, the latch 12 moves from the position C to the position C ', the engagement between the latch 22 and the latch 12 is released, and the sealed state of the housing is released.

In the above embodiment, the air cylinder 39 is used as the holding / releasing means 30. However, a solenoid may be used instead of the air cylinder 39, and a structure in which the receiving lever 21 is directly attracted by the solenoid is adopted. You may.

As described above, according to the present invention, during normal use, the latching means 20 which is rotatably provided is held at a predetermined position, and the latching means 10 is engaged with the latching means 20 so that the casing is sealed. When the release instruction is received by the electric switch 4 provided in the housing, the engaging means 2
0 is released, and the engagement with the latching means 10 is released.
Because the configuration of releasing the sealed state of the housing was adopted,
Normally, the sealing enclosure can be used in a completely sealable state,
Moreover, it is possible to provide a sealing housing that can be opened from the inside of the housing with a simple configuration. In addition, since the notch 34 is provided in the stopper 33, the engagement of the receiving lever 21 with the stopper recess 31 of the stopper 33 can be performed by a simpler operation.

[0018]

According to the present invention, during normal use, the locking means rotatably provided is held at a predetermined position, and the locking means is engaged with the locking means to maintain the sealed state of the housing. When a release instruction is received by an electric switch provided in the housing, the holding means is released, the engagement with the latch means is released, and the closed state of the housing is released. In general, it is possible to provide a sealing housing that can be used in a state where it can be completely sealed, and that can be opened with a simple structure with a lid.

[Brief description of the drawings]

FIG. 1 is an overall view showing an embodiment of the present invention.

FIG. 2 is a side view showing an embodiment of a main part of the present invention.

FIG. 3 is a front view showing an embodiment of a main part of the present invention.

FIG. 4 is a circuit diagram for supplying compressed air to an air cylinder.

FIG. 5 is a diagram showing an example of a case where the switch of the present invention is attached to a housing body.

FIG. 6 is a front view of the stopper of the holding / releasing means of the present invention.

FIG. 7 is a diagram showing a main part of a conventional housing.

FIG. 8 is a diagram showing a main part of a conventional housing.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Housing body 2 ... Lid 3 ... Packing 4 ... Switch 10 ... Latch means 20 ... Latch means 30 ... Holding release means

Claims (1)

(57) [Scope of request for utility model registration] 1. A housing body, a lid, a packing for shielding the housing body and the lid, engaging means rotatably disposed about a pivot point, and the engaging means being inclined. Holding and releasing means for engaging and releasing the engaging means in a state where the engaging means is not present, and enabling the engaging means to engage with the engaging means only when the engaging means is not inclined. A latching means provided to release the engagement with the engaging means by inclination of the means, and a switch provided in the housing main body and electrically instructing the holding releasing means to only disengage the engagement with the engaging means. A housing for sealing, comprising: